Methods for preparing modified vinyl silicone resin and organosilicone sealing compound containing modified vinyl silicone resin

A technology of vinyl silicone resin and silicone, applied in adhesives, adhesive additives, non-polymer adhesive additives, etc., to achieve the effects of ensuring transparency, facilitating filling and dispersion, and increasing the refractive index

Active Publication Date: 2016-08-17
深圳市勇泰运科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Examples

Experimental program
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Effect test

Embodiment 1

[0036] It is a preparation method of modified vinyl silicone resin, which is synthesized from low-viscosity vinyl silicone resin and phenyl-containing mercapto oligosiloxane; its specific synthesis process is: at a temperature of 20 ° C, and at Under the irradiation of a 100W ultraviolet lamp, slowly add phenyl-containing mercapto-oligosiloxane dropwise into the mixed system of low-viscosity vinyl silicone resin and initiator, phenyl-mercapto-oligosiloxane, low-viscosity vinyl The mass ratio of base silicone resin and initiator is 1:50:0.001, react for 2 hours;

[0037] The vinyl content of the low-viscosity vinyl silicone resin is 0.2mol%, and the viscosity is straight chain and branched chain and silicone oil of 200mPa.S;

[0038] The initiator is composed of a photoinitiator and a thermal initiator, and the mass ratio of the photoinitiator to the thermal initiator is 1:1. In this embodiment, the photoinitiator is 2-hydroxy-2-methyl-1-phenylacetone; the thermal initiator is...

Embodiment 2

[0054] It is a preparation method of modified vinyl silicone resin, which is synthesized from low-viscosity vinyl silicone resin and phenyl-containing mercapto oligosiloxane; the specific synthesis process is: at a temperature of 35 ° C, and at Under the irradiation of a 500W ultraviolet lamp, slowly add phenyl-containing mercapto-oligosiloxane dropwise into the mixed system of low-viscosity vinyl silicone resin and initiator, phenyl-mercapto-oligosiloxane, low-viscosity ethylene The mass ratio of base silicone resin and initiator is 1:50:0.001, react for 10 hours;

[0055] The vinyl content of the low-viscosity vinyl silicone resin is 2 mol%, and the viscosity is straight chain and branched chain and silicone oil of 10000mPa.S;

[0056] The initiator is composed of a photoinitiator and a thermal initiator, and the mass ratio of the photoinitiator to the thermal initiator is 1:2.

[0057] In this embodiment, the photoinitiator is ethyl 2,4,6-trimethylbenzoylphenyl phosphonate...

Embodiment 3

[0073] It is a preparation method of modified vinyl silicone resin, which is synthesized from low-viscosity vinyl silicone resin and phenyl-containing mercapto oligosiloxane; the specific synthesis process is: at a temperature of 25 ° C, and Under the irradiation of a 200W ultraviolet lamp, slowly add phenyl-containing mercapto-oligosiloxane dropwise into the mixed system of low-viscosity vinyl silicone resin and initiator, phenyl-mercapto-oligosiloxane, low-viscosity The mass ratio of vinyl silicone resin and initiator is 1:30:0.0008, react for 5 hours;

[0074] The vinyl content of the low-viscosity vinyl silicone resin is 0.8 mol%, and the viscosity is straight chain and branched chain and silicone oil of 8000mPa.S;

[0075] The initiator is composed of a photoinitiator and a thermal initiator, and the mass ratio of the photoinitiator and the thermal initiator is 1:3;

[0076] In this embodiment, the photoinitiator is ethyl 2,4,6-trimethylbenzoylphenyl phosphonate; the therm...

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Abstract

The invention relates to methods for preparing modified vinyl silicone resin and an organosilicone sealing compound containing the modified vinyl silicone resin. The modified vinyl silicone resin is generated through synthesis of low-viscosity vinyl silicone resin and sulfydryl oligosiloxane containing phenyl. Specifically, the modified vinyl silicone resin is synthesized in the way of slowly adding sulfydryl oligosiloxane containing phenyl to a low-viscosity vinyl silicone resin and initiator mixing system dropwise slowly under the irradiation of a 100-500 W ultraviolet lamp at 20-35 DEG C, wherein the content of vinyl in the low-viscosity vinyl silicone resin is 0.2-2 mol%, viscosity of the low-viscosity vinyl silicone resin is 200-10000 mPa.S, and the low-viscosity vinyl silicone resin contains a linear chain, branched chains and silicone oil; the initiator is composed of a photoinitiator and a thermal initiator.

Description

technical field [0001] The invention relates to a preparation method of a modified vinyl silicone resin and an organic silicon sealant containing the modified vinyl silicone resin. Background technique [0002] Under the current background of global energy shortage, energy conservation is an important issue we face in the future. As a new type of high-efficiency solid-state light source, LED has the advantages of small size, low power consumption, high brightness, low heat, long life, energy saving, green environmental protection, etc. Significant advantages, widely used in lighting, backlight, screen, signal display, medical treatment, biological effects, etc.; [0003] The materials used for LED packaging have an important impact on the optical, electrical and thermal properties of LED lights. LED packaging technology mainly includes packaging technology and packaging materials. The efficient and fast packaging process with mild conditions can reduce energy consumption and...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G77/392C09J183/07C09J11/06C09J11/08
CPCC08G77/392C08L2201/10C08L2201/22C08L2203/206C08L2205/025C08L2205/035C09J11/06C09J11/08C09J183/04C08L83/04C08K5/05
Inventor 刘锋邹海良
Owner 深圳市勇泰运科技有限公司
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